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1.发明授权Control rod absorber section fabrication by square tube configuration and dual laser welding process 失效控制杆吸收器部分采用方管配置和双激光焊接工艺制造
公开(公告)号：US4980535A
公开(公告)日：1990-12-25
申请号：US475570
申请日：1990-02-06
CPC分类号： G21C21/18 , G21C7/113 , G21Y2002/104 , G21Y2002/206 , G21Y2004/30 , Y02E30/39
摘要： An apparatus and process for the construction of a cruciformed section control rod is disclosed. The control rod is characterized by having square exterior sectioned tubes with central cylindrical volumes for the containment of neutron absorbing poisons. In the process, these tubes are welded together at the corners of the square sections to form the planar members of the cruciformed shaped rods. An apparatus and process is disclosed in which the rods are all held by a jig in the same configuration as is ultimately fabricated. Thereafter, the jig is drawn through fixtures, which fixtures accurately guide the rods to be joined by welding past paired and opposed laser welding heads. By the expedient of positioning the laser and rapidly drawing the braced together tubes by the laser, control rod fabrication occurs. There results a solid, integral control rod constituting a suitable pressure vessel for neutron absorbers for control of nuclear reactions.
摘要翻译： 公开了一种用于构造十字形部分控制杆的装置和方法。 控制杆的特征在于具有用于容纳中子吸收毒物的具有中心圆柱体积的方形外部分段管。 在该过程中，这些管在方形部分的角部焊接在一起，以形成十字形棒的平面部件。 公开了一种装置和方法，其中杆全部由与最终制造的相同构造的夹具保持。 此后，夹具通过夹具拉出，夹具通过焊接成对且相对的激光焊接头，精确地引导待接合的杆。 通过定位激光器并通过激光快速拉伸支撑在一起的管的优点，发生控制棒制造。 产生一个固体的整体控制棒，构成用于控制核反应的中子吸收器的合适的压力容器。
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2.发明授权Control rod absorber section fabrication by square tube configuration and dual laser welding process 失效控制杆吸收器部分采用方管配置和双激光焊接工艺制造
公开(公告)号：US4925620A
公开(公告)日：1990-05-15
申请号：US250631
申请日：1988-09-29
CPC分类号： G21C21/18 , G21C7/113 , G21Y2002/104 , G21Y2002/206 , G21Y2004/30 , Y02E30/39
摘要： An apparatus and process for the construction of a cruciformed section control rod is disclosed. The control rod is characterized by having square exterior sectioned tubes with central cylindrical volumes for the containment of neutron absorbing poisons. In the process, these tubes are welded together at the corners of the square sections to form the planar members of the cruciformed shaped rods. An apparatus and process is disclosed in which the rods are all held by a jig in the same configuration as is ultimately fabricated. Thereafter, the jig is drawn through fixtures, which fixtures accurately guide the rods to be joined by welding past paired and opposed laser welding heads. By the expedient of positioning the laser and rapidly drawing the braced together tubes by the laser, control rod fabrication occurs. There results a solid, integral control rod constituting a suitable pressure vessel for neutron absorbers for control of nuclear reactions.
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公开(公告)号：US5001324A
公开(公告)日：1991-03-19
申请号：US407076
申请日：1989-09-14
申请人： Louis L. Aiello , James A. Mees
发明人： Louis L. Aiello , James A. Mees
CPC分类号： B23Q35/128 , B23K26/04 , B23K26/044 , G05B2219/36417 , G05B2219/45165
摘要： A laser profiler is mounted to the focusing head for a laser welding beam to generate profile data for successive transverse viewing planes of an elongated joint prior to their presentations to the welding beam. The profile data is computer processed in accordance with a joint extraction algorithm using parameters defined in a tracking schedule characterizing the geometry of the joint to calculate the location of the joint centerline. The centerline location data is computer processed in accordance with a tracking algorithm to generate signals for activating a positioning head to adjust the position of the welding beam focal point and thus to track the moving joint as seam welding is effected.
摘要翻译： 将激光轮廓仪安装到用于激光焊接光束的聚焦头上，以在其对焊接光束的演示之前产生细长接头的连续横向观察平面的轮廓数据。 轮廓数据根据联合提取算法使用在跟踪计划中定义的参数进行计算机处理，表征关节的几何形状以计算关节中心线的位置。 根据跟踪算法对中心线位置数据进行计算机处理，以产生用于激活定位头的信号，以调整焊接束焦点的位置，从而在进行缝焊时跟踪移动接头。
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公开(公告)号：US4853176A
公开(公告)日：1989-08-01
申请号：US215188
申请日：1988-07-05
CPC分类号： G21C7/10 , G21Y2002/104 , G21Y2004/10 , G21Y2004/301 , G21Y2004/40 , Y02E30/39 , Y10S376/90
摘要： In a control rod construction for moderating and controlling a reaction of a nuclear reactor, a control rod structure is disclosed in which hafnium is welded to stainless steel. Typically, the control rod is confined for movement axially along its length into and out of the reactor. The hafnium is surrounded in the control rod structure by a sheath of stainless steel to inhibit movement relative to the control rod structure other than in the axial direction of control rod movement. The hafnium is friction welded to the stainless steel of the control rod so as to stress the weld in either tension or compression due to dynamic loading occurring from control rod movement. The stainless steel to which the hafnium is welded is in turn conventionally welded or mechanically connected to the remaining steel components of the control rod. There results a secure control rod structure having welded hafnium that can withstand the dynamic loadings of fast insertion of control rods such as those loadings which commonly occur under rapid control rod acceleration and deceleration due to SCRAM of a reactor.
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